Because your a woman we sit down shut up and accept being called what other people think we should be called and because also expecting another woman to be perfectly able to to cope with such important information like someone's bake is far to much for our teeny tiny little brains full up with knitting patterns and deciding what to wear hmm. The man's part was right that's what matters
Not sure if that's aimed at what I said. If so, you're hugely mischaracterizing my views.
I'm a woman and I believe that men and women
-both, equally, deserve to be addressed by the names they choose
-both, equally, ought to address others by the names they choose
-both, equally, are capable of addressing others by the names they choose
-both, equally, failable, especially at difficult times, and liable to making mistakes (not referring to OP's inlaws, who have done it consistently)
-both, equally, at their best when they are loving and tolerant and forgiving etc etc. In OP's case, it's not very loving of her inlaws to keep doing this, but it's not the inlaws who are asking MN whether they're being unreasonable, so it seems kind of less relevant.
I didn't anticipate having to spell out what should be pretty obvious, but it really seems that praising someone for being tolerant (and I wasn't actually even referring to OP's situation at the time), causes a lot of offence, and insinuations about sexism, if they happen to be a woman.
Right, I feel like I've fallen down a rabbit hole, and I need to finish wrapping presents.
OP, I hope most of all that your in-laws start addressing you correctly, but if they don't, it seems you have your answers - that most people on here think you wouldn't be unreasonable to tell them to get your name right or not include you. And it wouldn't be unreasonable IMO either. And definitely not unreasonable to think they're being bloody rude.